Author: Paramraj Singh Sondhi

Every individual who takes part in a clinical trial is entitled to a set of core rights, regardless of the trial’s location, sponsor, or medical condition involved. These rights are protected by law and enforced by independent ethics committees, government regulators, and international research guidelines.

Here’s what you need to know:

Voluntary Participation

Your participation in any clinical trial is completely voluntary. You are free to decide whether or not to join a study after reviewing all relevant information.

You also have the right to:

• Take your time deciding, there is no pressure to rush
• Decline to participate without giving a reason
• Say “no” at any point, even after signing the consent form or starting the trial

Key Note: You will never lose access to your regular medical care or insurance benefits if you choose not to participate or decide to leave a study.

Right to Withdraw at Any Time

Even after joining a study, you may stop participating at any time, for any reason.

You can withdraw by:

• Informing the research team or site contact directly
• Requesting help from DecenTrialz to initiate the withdrawal process
• Simply choosing not to proceed further if you haven’t yet consented

Withdrawing will not affect:

• Your relationship with your doctor
• Your eligibility for future studies
• Any care you are currently receiving

Key Note: If you’ve received any study treatments, the team may ask you to attend a final safety check, but this is optional and for your benefit.

Right to Understand Risks

Before you enroll in a clinical trial, you have the right to be informed, in plain language, about any known or possible risks involved. This includes:

• Side effects of medications or procedures
• Unknown outcomes due to investigational treatments
• Any physical, emotional, or privacy-related risks

You will receive a written consent form that outlines these risks. You also have the right to ask for clarification and take the form home for review.

Key Note: You cannot be enrolled in a study until you have fully understood and agreed to the risks. This is a legal and ethical requirement.

Right to Ask Questions

As a participant (or potential participant), you have the unrestricted right to ask any question at any point during the research process, whether you’re still exploring options, reviewing a consent form, or already enrolled in a study. Your curiosity, concerns, and clarity matter deeply.

Asking questions helps you:

• Understand the trial better
• Make informed decisions
• Protect your safety, rights, and privacy

The research team, and the DecenTrialz support team, are there to ensure all your questions are answered in plain language, respectfully and without pressure.

Examples of Questions You Have the Right to Ask

About the Study Itself:

• What is the purpose of this study?
• What condition or problem is the trial trying to address?
• How long will the study last?
• Will I need to stay at a hospital or can I participate from home?
• Has this treatment been tested in humans before?

About Participation & Procedures:

• What kinds of procedures or tests will I undergo?
• How many visits are required, and where do they take place?
• What will I need to do between visits?
• Is this a randomized trial? What does that mean for me?
• What happens if I miss a visit or need to reschedule?

About Risks & Benefits:

• What are the known or possible side effects?
• What if I experience a serious health issue during the trial?
• Are there any long-term risks?
• What direct benefits can I expect, if any?
• What should I do in case of an emergency during the study?

About Costs & Compensation:

• Will I be paid or reimbursed for participating?
• Will the study cover travel expenses or childcare?
• Do I have to pay for any part of the treatment or testing?
• Will my insurance be billed?

About Data & Privacy:

• What personal data will be collected and how will it be stored?
• Who will have access to my information?
• Will my name or identity be revealed in the results?
• Is this study HIPAA-compliant?
• Can I delete my data or withdraw my consent later?

About My Rights:

• Can I leave the study at any time?
• What happens to my data if I withdraw?
• Can I join another trial in the future?
• Who can I speak to if I have a complaint?

About Follow-up & Results:

• Will I be informed about the results of the study?
• Will I receive updates after the trial ends?
• Can I receive a summary of what was learned from my participation?

Key Note: There are no “wrong” questions. You are not expected to have medical knowledge, and all research staff are required, by law and ethics, to answer your questions respectfully and clearly.

Leaving a clinical trial, whether voluntarily or due to health reasons, is your right. If you’ve taken a break and want to rejoin the research process, here’s what you can do:

For the same trial

• In some cases, you may be allowed to return, depending on how much time has passed and why you left. This is at the discretion of the research team and subject to medical review.

For a new trial

• You can always return to DecenTrialz and update your profile to be considered for other studies.
• Taking part in one trial doesn’t exclude you from future opportunities.

How to restart

• Log back into your account on DecenTrialz
• Update your contact info and health status
• Complete a new pre-screening if needed

Key Note: You are never penalized for taking a break. Ethical guidelines guarantee your right to withdraw and return when you are ready.

Participation in a clinical trial does not replace your regular health insurance or medical care. However, it may involve some coordination with your healthcare provider, especially if you’re receiving an investigational treatment.

Important points

• Study-related procedures and medications are often provided at no cost to you.
• Your participation in the trial will not affect or replace your existing insurance plan.
• You can continue seeing your primary doctor for routine care during and after the trial.

Before joining, the research team will

• Explain what is covered by the study and what isn’t
• Inform you of any financial responsibilities, if applicable
• Answer questions about coordination with your insurance provider

Key Note: If you are concerned about coverage, ask the research site for a clear breakdown before signing the consent form.

If your specific condition doesn’t appear in the DecenTrialz condition filter or trial search, it may be for one of the following reasons:

• No active trials for that condition are currently recruiting
• The condition is rare and may have smaller studies or limited locations
• The medical terminology may differ (e.g., “hypertension” vs. “high blood pressure”)

What you can do

• Select a broader category that your condition may fall under (e.g., “autoimmune disorders” or “neurological conditions”)
• Use the search bar to try alternate names or synonyms for your condition
• Contact the support team for help identifying similar trials

Your profile remains in the system, and if a relevant study opens up, you may be contacted in the future.

Key Note: The list of conditions and studies is updated regularly. You don’t need to re-register, just keep your information updated.

Yes, some clinical trials are specifically designed for children or adolescents under 18. However, participation by minors requires special ethical protections and must follow strict legal and regulatory guidelines.

What makes pediatric trials different

• A parent or legal guardian must give permission (called “parental consent”).
• In many cases, the child must also agree in an age-appropriate way (called “assent”).
• The study must be approved by an ethics board with pediatric expertise.
• All information must be clearly explained in language that both the parent and child can understand.

How it works on DecenTrialz

• Minors cannot create their own accounts.
• A parent or guardian can sign up on their behalf and complete the pre-screening.
• If matched, the research site will conduct a full review and guide the family through the consent process.

Key Note: Trials involving children are reviewed with extra care to ensure their rights, safety, and emotional well-being are protected at every step.

In most cases, you can only participate in one clinical trial at a time. This is because:

• Taking part in multiple trials could affect your safety.
• Overlapping treatments or procedures may interfere with research results.
• Ethical guidelines prevent duplicate enrollment without careful coordination.

However, you can:

• Join another trial after completing one, as long as there’s no required waiting period.
• Participate in non-interventional studies (like surveys or registries) while enrolled in a treatment trial, depending on study rules.

What if you are contacted by multiple sites?

You are always free to speak to different research teams, ask questions, and choose the trial that’s right for you.

Key Note: If you’ve already joined a trial through another platform or site, inform the research team or DecenTrialz so we can update your profile and avoid duplicate referrals.

Not qualifying for a clinical trial can feel disappointing, but it is more common than you might think. There are many reasons why someone might not be eligible, and they usually have nothing to do with your health or worthiness as a participant.

Common reasons you might not qualify

• You don’t meet specific inclusion criteria (such as age range, test results)
• You have a medical history that could interfere with the study
• You are taking a medication that could interact with the study drug
• The trial has already met its recruitment target

What happens next?

• Your data stays securely stored in your DecenTrialz profile.
• You can be considered for other trials in the future.
• You can update your information at any time to improve your chances of matching with other studies.

Key Note: Being ineligible for one trial does not prevent you from participating in others. Many users match with future studies over time.

Once you complete the pre-screening process on DecenTrialz, your information is securely reviewed to identify clinical trials that may be a match for your profile. If a potential match is found, here’s what typically happens next:

1. Referral to a Research Site
   You will be referred to the official clinical research site managing that specific trial. This may be a hospital, academic center, or research facility.
2. Formal Screening Appointment
   The research team will contact you to set up a screening visit. This may include:
   • A detailed medical questionnaire
   • Review of your health records
   • Physical exams or lab tests
   • Explanation of the study’s purpose and procedures
3. Informed Consent Process
   Before anything else happens, the research team will walk you through an informed consent form. You will have time to read it, ask questions, and decide whether or not you want to participate.
4. Final Eligibility Review
   After tests or evaluations, the research team will determine if you meet all criteria and are safe to enroll in the trial.

Key Note: DecenTrialz does not conduct medical testing or enroll participants. We only support the referral process up to the point of contact with the research site.

Pre-screening is the first step in the clinical trial process. It happens before you are officially enrolled or give informed consent.

At DecenTrialz, we use a simple, secure online form that asks you:

• Whether you are a healthy volunteer or have a specific medical condition
• Your age, gender, and location
• A few basic questions about your medical history and current health

This information is used only to match you with relevant studies. If your answers suggest a possible match, we will refer you to the appropriate research site, where formal eligibility assessment and the consent process begin.

What pre-screening is not

• It is not a guarantee you will be accepted into a trial.
• It does not involve any medical procedures or tests.
• It does not require you to commit to anything.

Why pre-screening is helpful

• It saves time by filtering out trials that don’t apply to you.
• It protects your privacy by avoiding unnecessary data sharing.
• It ensures you are only referred to trials you may actually qualify for.

Key Note: DecenTrialz only supports pre-screening and referral. The official screening, enrollment, and consent are conducted by the research site managing the study.

Every clinical trial has two sets of rules:

• Inclusion criteria: the traits or conditions you must have to participate.
• Exclusion criteria: the traits or conditions that prevent you from participating, usually for safety or scientific reasons.

Eligibility may be based on

• Age and gender
• Diagnosis and disease stage
• Current medications or treatments
• Medical history (such as past surgeries or conditions)
• Test results (like blood tests or imaging)
• Lifestyle factors (such as smoking, alcohol use, or pregnancy)

Before you are enrolled, researchers will compare your information to the study’s criteria. If you do not qualify, it does not mean something is wrong, it simply means the trial is not the right fit.

Why these rules matter

• They help keep participants safe.
• They ensure the results of the trial are accurate and useful.
• They protect against unnecessary risks or treatments that may not be suitable.

Key Note: DecenTrialz uses a secure pre-screening system to help assess your eligibility before referring you to a research site.